Well-drilling tool.



PATENTED ,Dl-20,. 31, 1907.

@kW/manga LED 02311.29, 1906.

lfRONCO S. FREELAND, OF BROOMFIELD, WES' li'ltGirli/l.

WELL-DRILLNG T002.

Specification of Letters Patent.

Application filed October` 29, 3.906. Serial No. @1.098.

To oli whom it may concern.:

Be it known that I, FrioNoo S. FREELAND, e citizen of the United States, residing et Broomlield, in the county of Marion end State ol' West Virginie, have invented certain new and useful Improvements in Well-Drilling Tools, of which the following is e specifi-- cation.

In drilling and operating OiLArtesien end other deep Wells, tools and operating-devices fre uently become broken or otherwise de- 'tec red from the o ereting ineens end require to be fished out. n the event of drills, reemers end like tools used in drilling or boringr deep Wells, becoming broken, considerable difficulty is experieneed'in "ecovering and rcinoving the seme and it not unfrequently happens that the Well has to be abandoned Abecause of the inability to remove the tool which obstructs further operations.

The present invention ,provides e tool by means of which e threaded pin is formed upon the up er end of the broken er lost tool, thereby eneiiling the seme to be removed so `that the drilling or boring of the well may "oe proceeded with without enteiling loss of the Work already expended For e. full description of the invention and the merits thereof end also to acquire e knowledge of the details of construction and the ineens for effecting the result, reference is to be had to the following description and accompanyingT drawings.

VVhic the invention may be adapted to different forms and conditions by changes in the structure end minor details Without departing from the spirit or essentiel features thereof, still the preferred embodiment is shown in the accompanying drawings, in which: g

Figure l is a. vertical centrati section of a. tool embodying the'invention, showing the relation of the parts when the driver is lowered and disconnected from the operating ele ment by ineens of which the cutter teted. Fig. 2 is e sectional View showing the. driver in clutched engagement With the tool onereting member. Fig. 3 is e top pien View oL the moveble operating member, I

The tool comprises e driver 1. e cutter 2 end co ereting ineens iorfreteting the tool.

The driver l is of cylindrical form end is provided et its upper end with e threaded pin for connection oi' the drill rods or other operating means tl'ierewith. The lower end of l l l l l l -I tire driver is enlarged end threaded, es shown et 4, end receives operitting; 6, the member 5 heine,` iiv 6 loose end having limi ed In. closes the lower end et' the driser i provided upon its upper side with en eXte riorelly threaded rim. 'which screws into the lower portion of the driver een ciernes the member The members 5 and 6 und 'the cap 7 ere each formed with e. centre?. opening through which the shank 9 ci the cutter 2 passes, the openings in the perte end 7 in;r oi such e size es to edniit of the stern enti the threaded portion thererne moving froci theretl'irougrh, Whereas member 6 is internally threaded to corre spend withfthc threed l0 cut or otherwise provided upon the outer side of the stem l The thread l0 has e. steep pitch end is comv monly designated ee e. movement of the member 6 upon, the stem i? end held from turning during movement i impart rotetion to the stem 9 and ent 2. The upper end of the .stem Q is reduced receive' e 'washer l end the ezztremity threaded to receive e nut i2 by ineens; which the Washer li is retained in plane. The weeiier l snugly 4lits the interior here or opening of the driver l endiorrns e. guide i the'upoer end of the stern es well es e stop to e limit tie relative upward movement oll the driver.

The membere end 6`eonstitute operating elements and are provided upon theirmecting feces with teeth which engege upon the descent of the driver end form e clutch connection between the operating elemente toriuiee the cutter to rotete. The inembe 5 is pro- 'vided upon its lower fece with teeth E om? the member 6 hes @ori-espoir teeth i upon. its upper side. The niemeer 5 ie leali. with the driver, Whereas the member-6 has limited vertical piey eutlicient to bring the teeth i3 end ie into enfout of engagement The member 6 is eficenged Within the of the rim'B. Upon the nir/verd nos-'ement of the driver, the inen'liier 5 nieves ein rmn rthe member? osterie-e to tiirfiref the teeth 13 eind ifi out ol' nge ednoitting of the driver e imparting rotetion to the if, scent of the driver, the in into clutched eT thereinr holdii ing und by reason of the qui ncction between the stem. ii :o Le member 6, said stem end the cutter Z carried thereby' the openingr in the o iening therethrough enlarged and interiorly t irezided at one end thereof, an upertured cap fitting over the said end of' the driver and provided wi th an exteriorly threaded rim reu oeived by the enlarged portion of' the opening` are rotated. The driver l mayvr be reciproeeted in' any i'nennerand is adopted to be i eonneeted to the walking beani of any oil well driiling;` or operating nieehanisin. The Cutter 2 is of cylindrical forni and is provided et its lower end with e series of cutting teeth 15 which are designed to out awev the outer portion of e tool or other part in the well so as to forni e pin. thereon. A die or tlireed outter ,lo is provided upon the inner side ofthe enti-er 2 adjeeent to thelteeth l5 and iorins a thread upon the pin the latter is out The die or thread cutter lo may be of usual oonstruetion and consists of a series of threaded sections upon the inner side of the cutter 2. it to`be understood that the Cutter 2 is of best tool steel highlyv tempered so es to retain a euttingrf edge and insure the successful operation of the tool when employed for re moving a drill7 reainer or other part that iney beeoine broken and lodged in the well.

Having thus deseribed the invention7 what is Claimed es new is:

ln a

` device of the character desi'ribed, the eoinbination of :i tubular driver having the through the driver, an apertured operating member fitting in the enlarged portion of the opening of the driver end clamped in position by rneans of the cap, a cutter provided with n threaded stein extending through the perforations in the cap within the driver, e second operating nieinber havinr e threaded connection with the stein and 'iitting loosely between the eap and the Iiirst mentioned operating` ineinher, Aand means for securing a eluteh Connection between the two operating members when the driver is inov'ed in one direction;

'- In testimony whereof I a'lix my signature in presence of two Witnesses.

- FRONCO S. FREELAND. [14. s] Vitnesses:

-A. F. MiLLAN,

JQ S. LEGGE/rr.

end before mentioned operatingn'ieniber and movable longitudinally 

